2  *  ata_generic.c - Generic PATA/SATA controller driver.
6  *	    Copyright (C) 2001-2002	Andre Hedrick <andre@linux-ide.org>
13  *  tuning for us. By default we do not grab all IDE class devices as they
41  *	generic_set_mode	-	mode setting
53 	struct ata_port *ap = link->ap;  in generic_set_mode()
54 	const struct pci_device_id *id = ap->host->private_data;  in generic_set_mode()
58 	if (id->driver_data & ATA_GEN_FORCE_DMA) {  in generic_set_mode()
60 	} else if (ap->ioaddr.bmdma_addr) {  in generic_set_mode()
62 		dma_enabled = ioread8(ap->ioaddr.bmdma_addr + ATA_DMA_STATUS);  in generic_set_mode()
67 		dev->pio_mode = XFER_PIO_0;  in generic_set_mode()
68 		dev->dma_mode = XFER_MW_DMA_0;  in generic_set_mode()
71 		if (dma_enabled & (1 << (5 + dev->devno))) {  in generic_set_mode()
72 			unsigned int xfer_mask = ata_id_xfermask(dev->id);  in generic_set_mode()
85 			dev->xfer_mode = ata_xfer_mask2mode(xfer_mask);  in generic_set_mode()
86 			dev->xfer_shift = ata_xfer_mode2shift(dev->xfer_mode);  in generic_set_mode()
87 			dev->flags &= ~ATA_DFLAG_PIO;  in generic_set_mode()
90 			dev->xfer_mode = XFER_PIO_0;  in generic_set_mode()
91 			dev->xfer_shift = ATA_SHIFT_PIO;  in generic_set_mode()
92 			dev->flags |= ATA_DFLAG_PIO;  in generic_set_mode()
111  *	is_intel_ider		-	identify intel IDE-R devices
114  *	Distinguish Intel IDE-R controller devices from other Intel IDE
115  *	devices. IDE-R devices have no timing registers and are in
119  *	IDE-R devices have PCI offset 0xF8.L as zero, later Intel ATA has
121  *	not writable on IDE-R devices (this is guaranteed).
126 	/* For Intel IDE the value at 0xF8 is only zero on IDE-R  in is_intel_ider()
131 	/* Check the manufacturing ID, it will be zero for IDE-R */  in is_intel_ider()
133 	/* Not IDE-R: punt so that ata_(old)piix gets it */  in is_intel_ider()
142 	   we eliminate any early devices hot-docked in a docking  in is_intel_ider()
154  *	ata_generic_init_one		-	attach generic IDE
176 	if ((id->driver_data & ATA_GEN_CLASS_MATCH) && all_generic_ide == 0)  in ata_generic_init_one()
177 		return -ENODEV;  in ata_generic_init_one()
179 	if ((id->driver_data & ATA_GEN_INTEL_IDER) && !all_generic_ide)  in ata_generic_init_one()
181 			return -ENODEV;  in ata_generic_init_one()
184 	if (dev->vendor == PCI_VENDOR_ID_UMC &&  in ata_generic_init_one()
185 	    dev->device == PCI_DEVICE_ID_UMC_UM8886A &&  in ata_generic_init_one()
186 	    (!(PCI_FUNC(dev->devfn) & 1)))  in ata_generic_init_one()
187 		return -ENODEV;  in ata_generic_init_one()
189 	if (dev->vendor == PCI_VENDOR_ID_OPTI &&  in ata_generic_init_one()
190 	    dev->device == PCI_DEVICE_ID_OPTI_82C558 &&  in ata_generic_init_one()
191 	    (!(PCI_FUNC(dev->devfn) & 1)))  in ata_generic_init_one()
192 		return -ENODEV;  in ata_generic_init_one()
194 	/* Don't re-enable devices in generic mode or we will break some  in ata_generic_init_one()
198 		return -ENODEV;  in ata_generic_init_one()
200 	if (dev->vendor == PCI_VENDOR_ID_AL)  in ata_generic_init_one()
203 	if (dev->vendor == PCI_VENDOR_ID_ATI) {  in ata_generic_init_one()
253 MODULE_DESCRIPTION("low-level driver for generic ATA");